论文标题

关于气幕空气动力密封的实验研究

Experimental Study on the Aerodynamic Sealing of Air Curtains

论文作者

Viegas, Joao Carlos, Oliveira, Fernando, Aelenei, Daniel

论文摘要

在当今的建筑物中,控制空气质量至关重要。垂直空气窗帘通常用于分离两个不同的气候区,以减少传热。实际上,这项研究工作提出了一个旨在确保在两个区域(干净的区域和受污染区域)之间进行适当分离的空气幕。这项研究的方法包括:(i)对水模型的小规模测试,以确保污染不会穿过空气幕,以及(ii)整合了飞机喷头的主要物理特征的分析发展。在开发的溶液中,从受污染的隔室中提取气流,以减少拒绝到隔室外部的窗帘气流。在这项研究工作中,有可能确定确保空气幕间空气动力密封所需的最小排气流量。本文介绍了用于执行小规模水测试和相应结果的方法。

Controlling the air quality is of the utmost importance in today buildings. Vertical air curtains are often used to separate two different climatic zones with a view to reduce heat transfer. In fact, this research work proposes an air curtain aimed to ensure a proper separation between two zones, a clean one and a contaminated one. The methodology of this research includes: (i) small-scale tests on water models to ensure that the contamination does not pass through the air curtain, and (ii) an analytical development integrating the main physical characteristics of plane jets. In the solution developed, the airflow is extracted from the contaminated compartment to reduce the curtain airflow rejected to the exterior of the compartment. In this research work, it was possible to determine the minimum exhaust flow necessary to ensure the aerodynamic sealing of the air curtain. This article addresses the methodology used to perform the small-scale water tests and the corresponding results.

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